3-Hydroxy-4-methyl-2(5H)-thiophenone is a degradation product of the cephalosporin antibiotic cefaclor .1 It is formed from cefaclor under aqueous acidic conditions.
1.Baertschi, S.W., Dorman, D.E., Occolowitz, J.L., et al.Isolation and structure elucidation of the major degradation products of cefaclor formed under aqueous acidic conditionsJ. Pharm. Sci.86(5)526-539(1997)
















